Assessing its war plans:
Recognizing that in war nothing ever goes entirely as expected, and that there are some major unknowns, this is based on what we do know about North Korea’s force structure, its comparative strengths, and terrain and other considerations—along with my own assessment of how Korean War II would initially unfold. But regardless of how it played out, one thing is near certain: It would entail horrific destruction and suffering. Tens or hundreds of thousands could become casualties. In defeat, North Korea would become a 25-million strong humanitarian catastrophe. And that is just with conventional weapons: The possible consequences of attacking Seoul with WMD are almost too awful to contemplate. There is a role for force here—a strong ROK/US posture has certainly constrained North Korean aggression for decades—and in no way should DPRK threats be simply acceded to. But under current conditions, and given the scale of likely destruction, planners should strongly question whether each DPRK provocation—even the imminent development of a ICBM—justifies risking such a war.
As a general once said, war consists of sh***y options, and this is probably the worst problem currently on the global state.